On Tue, Jul 28, 2026 at 10:29:14PM +0100, Pavel Begunkov wrote:

Introduce a new iterator type for dmabuf maps. The map in an opaque object with internals and format specific to the subsystem / driver, and only it can use that subsystem / driver for issuing IO. The task of the middle layers is to pass the map / iterator further down, maybe doing basic splitting and length checking. The iterator can only be used by operations of the file the associated map was created for.

Suggested-by: Keith Busch kbusch@kernel.org Signed-off-by: Pavel Begunkov asml.silence@gmail.com

Looks good:

Reviewed-by: Christoph Hellwig hch@lst.de

I'm also pretty sure I reviewed this and vairous other patches before..